Adaptive wireless optical transmission scheme for health monitoring system

Noonpakdee, Wasinee

doi:10.1109/icce-berlin.2013.6698016

Cited by 10 publications

(6 citation statements)

References 16 publications

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“…The sensors measure significant physiological parameters, and the measurement signal is transmitted to an image sensor. We adapted our proposed model in [8,10] to obtain the required SNR in both passive and active mode with low power consumption.…”

Section: System Modelmentioning

confidence: 99%

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Hybrid Passive–Active Optical Wireless Transmission for Health Monitoring System

Noonpakdee

2015

Wireless Pers Commun

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This paper proposes a hybrid passive-active optical wireless transmission scheme for personal health monitoring system. In this scheme, passive and active optical wireless transmission is applied in order to attain the required signal to noise ratio (SNR). In passive transmission, thin film corner cube retroreflector (TCCR) is employed to modulate and reflect the obtained measurements from sensors to a central node. The absorbed power from TCCR helps recharge the battery in a wearable transmitter. The active transmission mode is applied when SNR of passive transmission mode cannot be achieved. An image sensor is utilized as a receiver. Absorbed power and reflected power at TCCR and SNR at the image sensor are analyzed with consideration of the transmitted power and the user's location. The analytical results indicate that by employing the hybrid passive-active optical wireless transmission scheme, the required SNR of 13.6 dB is achieved with energy efficiency.

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Section: System Modelmentioning

confidence: 99%

“…Optical sensor technologies for wearable health monitoring are studied in [2,3]. OWC is proposed for health monitoring system in [2,[8][9][10]. In addition, the feasibility of an optical wireless body area network is investigated in [11].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Passive–Active Optical Wireless Transmission for Health Monitoring System

Noonpakdee

2015

Wireless Pers Commun

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“…The goal of this initiative is to define and build a healthcare facility equipped with modern technologies, using up-to-date standards to efficiently distribute and utilize hospital resources, ultimately providing cost effective and state-of-the-art healthcare to everyone. The HoF concept also includes home or remote healthcare facilities [6,7], allowing realtime monitoring of patients [8], remote control of robots 1 3 [9], implants or actuators, etc. Truly connected healthcare can only be achieved if every stakeholder of the HoF is connected to a communication highway where the hulk of information between patients, equipment and healthcare personnel is efficiently and timely delivered [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…There has been a growing interest of utilizing VLC in hospitals, in [13,14] authors have demonstrated the utilization of VLC in hospital to transmit data and have discussed the additional benefits of VLC including radiation free, secure and fairly inexpensive communication. VLC has proven effective technology for potential healthcare applications such as remote health monitoring [8] and controlling autonomous robots [9]. There are many proven features that make VLC feasible for healthcare scenarios.…”

Section: Introductionmentioning

confidence: 99%

Wireless Communications for the Hospital of the Future: Requirements, Challenges and Solutions

Ahmed

Karvonen

Kumpuniemi

et al. 2019

Int J Wireless Inf Networks

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In this conceptual paper, we discuss the concept of hospital of the future (HoF) and the requirements for its wireless connectivity. The HoF will be mostly wireless, connecting patients, healthcare professionals, sensors, computers and medical devices. Spaces of the HoF are first characterized in terms of communicational performance requirements. In order to fulfil the stringent requirements of future healthcare scenarios, such as enhanced performance, security, safety, privacy, and spectrum usage, we propose a flexible hybrid optical-radio wireless network to provide efficient, high-performance wireless connectivity for the HoF. We introduce the concept of connected HoF exploiting reconfigurable hybrid optical-radio networks. Such a network can be dynamically reconfigured to transmit and receive optical, radio or both signals, depending on the requirements of the application. We envisage that HoF will consist of numerous communication devices and hybrid optical-radio access points to transmit data using radio waves and visible light. Light-based communications exploit the idea of visible light communications (VLC), where solid-state luminaries, white light-emitting diodes (LEDs) provide both room illumination as well as optical wireless communications (OWC). The hybrid radio-optical communication system can be used in principle in every scenario of the HoF. In addition to the hybrid access, we also propose a reconfigurable opticalradio communications wireless body area network (WBAN), extending the conventional WBAN to more generic and highly flexible solution. As the radio spectrum is becoming more and more congested, hybrid wireless network approach is an attractive solution to use the spectrum more efficiently. The concept of HoF aims at enhancing healthcare while using hospital resources efficiently. The enormous surge in novel communication technologies such as internet of things (IoT) sensors and wireless medical communications devices could be undermined by spectral congestion, security, safety and privacy issues of radio networks. The considered solution, combining optical and radio transmission network could increase spectral efficiency, enhancing privacy while reducing patient exposure to radio frequency (RF). Parallel radio-optical communications can enhance reliability and security. We also discuss possible operation scenarios and applications that can be introduced in HoF as well as outline potential challenges. Keywords Hospital of the future • Reconfigurable networks • Visible light communications • Hybrid wireless networks • Optical wireless communications • Wireless body area networks

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“…For around 50 years, optical wireless communications have been investigated for different applications including short-range indoor links or outdoor intra-building and inter-satellite uses [3][4][5][6][7][8]. The potentialities of using optical wireles communications in the infrared range for healthcare monitoring have already been investigated from a theoretical point of view [9][10][11]. Indeed, using optical wireless links permits reducing the amount of RF effects in the patient vicinity and ensures that there is no interference with existing RF and electronic equipment.…”

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confidence: 99%

Optical wireless connected objects for healthcare

Toumieux

Chevalier

Sahuguède

et al. 2015

Healthcare Technology Letters

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In this Letter the authors explore the communication capabilities of optical wireless technology for a wearable device dedicated to healthcare application. In an indoor environment sensible to electromagnetic perturbations such as a hospital, the use of optical wireless links can permit reducing the amount of radio frequencies in the patient environment. Moreover, this technology presents the advantage to be secure, low-cost and easy to deploy. On the basis of commercially available components, a custom-made wearable device is presented, which allows optical wireless transmission of accelerometer data in the context of physical activity supervision of post-stroke patients in hospital. Considering patient mobility, the experimental performance is established in terms of packet loss as a function of the number of receivers fixed to the ceiling. The results permit to conclude that optical wireless links can be used to perform such mobile remote monitoring applications. Moreover, based on the measurements obtained with one receiver, it is possible to theoretically determine the performance according to the number of receivers to be deployed.

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Adaptive wireless optical transmission scheme for health monitoring system

Cited by 10 publications

References 16 publications

Hybrid Passive–Active Optical Wireless Transmission for Health Monitoring System

Hybrid Passive–Active Optical Wireless Transmission for Health Monitoring System

Wireless Communications for the Hospital of the Future: Requirements, Challenges and Solutions

Optical wireless connected objects for healthcare

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